Unknown frameset. Any ideas?

[Highgear]

Columbus stamped on steerer tube. Campy rear dropouts with 120 spacing.

[Jeff Wills]

Interesting drilled dropouts.

You need to post photos of distinctive features: dropouts, seat lug, fork crown, head lugs.

[MrEss]

Well, it's decent quality and probably late 1970s. It'll need more detail pictures for anybody to do any better than that -- good shots of all the lugs/BB/the drilling in the rear DO/fork crown.

I love drillium rear dropouts, they always look so great.

[Highgear]

There are more photos posted here that are larger.

http://forums.roadbikereview.com/ret...ld-279538.html

[ultraman6970]

Looks like an old Gios, but maybe is not... 120 mm spacing?? that thing has to be pretty old... 50s or 60's

[MrEss]

that thing has to be pretty old... 50s or 60's

The brazed-on cable guides at the bottom bracket make me think much newer than 50's or 60's. The brazed-on rear brake cable guides, too, to a lesser extent.

Nice job with the paint and the parts-bin build. How's it ride?

I've posted the pics from the other forum.

IMG_0354.jpgIMG_0356.jpg

[Henry III]

I'd say mid to maybe early 70's . The bottle mount and nutted brake bridge pushes it in that time frame for me. When did bottle mounts first start showing over the clamp on style on frames? I don't recall seeing many frames from the 60's with bolt on bottle cages and have even seen Colnagos from the 70's using a clamp on cage.

[Highgear]

He posted more photos here:

http://s167.photobucket.com/albums/u...steel%20frame/

[big chainring]

Gios is a good guess, but mid to late 70's. Isn't that the seatstay cap Gios used?

[Highgear]

Doing some photo searches, the seat cluster and drilled rear dropouts look Gios but not the heart shaped cut-outs and fork crown. Did Gios make a offshoot brand?

[arimajol]

Gios is a good guess, but mid to late 70's. Isn't that the seatstay cap Gios used?

the seatstay caps on my gios look sort of like that, but longer, not as stubby.

[unworthy1]

I agree that the stay caps are "Gios-like" but not exactly the same, for one thing the stays are single-taper so larger at the top than is typical for most Gios I have seen.
Another not-so-great clue for you: Olmo used the same head lugs in the '80s but not with that heart-shaped cut-out (They would have had a star if any).